speaker

Definitions

• One who speaks.
• Loudspeaker.
• Speakerphone.
• (politics) The chair or presiding officer of certain legislative bodies, such as the U.K. House of Commons or the U.S. House of Representatives.
• One who makes a speech to an audience.
• (US) A book containing passages of text for use in speeches.
• (especially) The producer of a given utterance (text, etc), whether actually spoken or e.g. written.
• (music) A key on a woodwind instrument of the clarinet family (cf octave key on other instruments) which induces the instrument to overblow.